http://www.commres.net/ 2026-04-17T09:58:58+00:00 http://www.commres.net/ http://www.commres.net/_media/wiki/logo.png text/html 2019-12-13T04:33:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.commres.net/c/ma/2019/assignment_week15?rev=1576211624&do=diff <http://commres.net/wiki/sna_eg_stanford/lab06#no_pdf> Please follow this procedure for a proper homework. * Please install rtools 3.5 along with rstudio. * Also update the R version. The current updated version is 3.6.2 * Then install “devtools” package * install.packages("devtools") * devtools will not be installed unless rtools 3.5 is installed. text/html 2021-11-09T04:00:20+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.commres.net/c/ma/2019/eg_script?rev=1636430420&do=diff library(ISLR) attach(Carseats) str(Carseats) m.Sales.PriceShelveLoc <- lm(Sales ~ Price + ShelveLoc, data=Carseats) summary(m.Sales.PriceShelveLoc) plot(Price[ShelveLoc=="Bad"], Sales[ShelveLoc=="Bad"], col="blue", xlab="Price", ylab="Sales", main="Sales vs. Price, Shlv Loc") points(Price[ShelveLoc=="Medium"], Sales[ShelveLoc=="Medium"], col="red") points(Price[ShelveLoc=="Good"], Sales[ShelveLoc=="Good"], col="green") legend("topright", legend=c("Good", "Medium", "Bad"), co… text/html 2021-11-15T22:32:31+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.commres.net/c/ma/2019/factor_analysis_assignment?rev=1637015551&do=diff Factor analysis assignment The assignment should be uploaded or wriitten in the ajou bb technology. data file : The data set contains what customers consider while purchasing car. The survey questions were framed using 5-point likert scale with 1 being very low and 5 being very high. The variables were the following: text/html 2019-11-01T02:42:08+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.commres.net/c/ma/2019/group?rev=1572576128&do=diff Group - Media Analysis, 2019 group name2 1 박주연 1 윤나혜 1 송지연 2 정규민 2 권태욱 2 신재원 2 이우현 3 김수빈 3 표소영 3 김승주 3 김동우 4 안효성 4 이규정 4 조준영 4 민경희 5 박치언 5 권민성 5 이대경 5 조인성 6 신선 6 문주영 6 양형조 6 도지현 7 박병준 7 이주영 7 이소정 8 김현수 8 정지민 8 안다경 8 김태연 9 김민규 9 김혜원 9 오가현 9 최벼리 text/html 2019-10-04T02:28:12+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.commres.net/c/ma/2019/lecturer?rev=1570156092&do=diff Lecturer's note: MA, 2019 In class small <- c(0.6739635, 1.5524619, 0.3250562, 1.2143595, 1.3107692, 2.1739663, 1.6187899, 0.8872657, 1.9170283, 0.7767406) medium <- c(10.526448, 9.205156, 11.427756, 8.53318, 9.763317, 9.806662, 9.150245, 10.058465, 9.18233, 7.949692) big <- c(99.83624, 100.70852, 99.73202, 98.53608, 100.74444, 98.58961, 100.46707, 99.88068, 100.46724, 100.49814) dframe <- data.frame(small, medium, big) text/html 2021-11-11T01:14:15+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.commres.net/c/ma/2019/multiple_regression_exercise?rev=1636593255&do=diff Class Activities Ex. 1 * Install packages ISLR * use a dataset, Carseats * Build regression models with a DV, sales and IVs, your choices * Use ?Carseats command for the explanation of the dataset * Use str function to see the characteristic of each variable. Make it sure that text/html 2019-12-13T04:23:11+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.commres.net/c/ma/2019/schedule?rev=1576210991&do=diff Class page multivariate statistics in R network analysis in R * A User’s Guide to Network Analysis in R (Use R!) * Statistical Analysis of Network Data with R (Use R!) 2014th Edition <https://lagunita.stanford.edu> Network Analysis in R using igraph package -- from Datacamp Marketing analysis in r statistics from Datacamp Week01 (Sep 4, 6) $ \displaystyle \sigma_{\hat{p}} = \sqrt{\frac{p*q}{n}} , \;\;\; q = (1 - p) $$ p = .752 $